I'm not a tall man, but I had the same problem. Couldn't stay on it more than an hour and sliding forward. I put on my airhawk that I already had, and it helped some, however was still sliding forward, and now with the airhawk, was bearing into the family jewels. So, I bought a like new sargent seat from another inmate here, and that doubled the time I could ride before getting off, fine for day trips around here, but I feel I need to be able to at least ride a tank of gas if I want to go anywhere. After reading all the threads about the Terry Adcox seat, I sent mine in for the group discount last month, total cost of 222.50, which includes sending him my seat, and pray that it will give me the comfort I need. When I receive it, I'll post how it helps. It used to be that I could ride all day on a 2x4, but climbing into the +60 age catagorey, the body just doesn't take it anymore, which is most of the reason , like others, of buying the Strom.